Type-writing machine.



T. WALDHEIM.

TYPE WRITING MACHINE.

APPLICATION FILED NOV. 14, 1910.

2 SHB-ETSSHEET 1.

L1 H5 'ATTRNEY Patented Dec. 26, 1 911.

J. WALDHEIM.

TYPE )IVRITING- MACHINE. APPLICATION FILED M0114, 1910.

L1%%& Patented Dec.26,1911.

2 SHEETSSHEET 2.

fla ATTORNEY UNITED TAWENT orrion .romv wALnHmM, or NEWARK, NEW JERS Y,As'srenon'ro UNIONTYPEWQITEB COMPANY,- or 11.1011, NEW YORK, Aconroaa'rron or NEW iron c TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Dec. 26,1911.

Application filed November 14, 1910. Serial No. 592,218.

To all whom it may concern:

Be it known that I, JOHN WALDHEIM, a citizen of the United States, andresident of Newark, in the county of Essex and State of New Jersey, haveinvented certain new H. Shepard Serial Nos. 591,679; 591,680 and Thisinvention has some of the same general objects in view as the inventionsdisclosed in the said Shepard applications;

namely, -to provide an easily operated, .ef-

ficient and reliable escapement mechanism and one in which the wear ofthe escapement devices is greatly reduced; the construction in thep'resentinstance being such that each complete operation of a finger keymoves the 17.. The carnage comprises front and rear dog rocker in butone direction.

A further object of the invention is to provide simple and eflicientadjustin mean by which the timing of the F let-ofi' of the carriagecan'be' nicely regulated.

To the above and other ends which will hereinafter appear, my inventionconsists in the features of construction, arrangements of parts andcombinations of devices to be hereinafter described andparticularly Vpointed out in the appended claims.

embodying my invention. Fig. 2 is a diaby the key lever by which theuniversal barthesame'showingtheparts disposed in dif- .of the same withthe grammatic' side elevation with parts in section, shovivgng one ofthe. key levers, the

double on versal bar and the means carried is actuated. Figs. '3 and 4are like views of ferent positions. Fig. 5 is a detail rear elevation,with parts in section, of the escape ment mechanism. '6 is a sideelevation arts in section. Fig.

7 is a fragmentary iagrammatic view of the feed dog and escapementwheels. Fig. 8

is a rear elevation, with parts in. section,

showing "a modified fornn of, escapement mechanism. Fig. 9 is a sideelevation of'thc same'with parts in section.

I have shown my invention embodied in the present instance in a No. 10Remington machine, althou h only a conventionalrepresentation of tiecarriage appears. in t e drawings. It should be understood, however,that the invention may be embodied in various styles'of typewritingmachine.

The frame of the machine comprises a base 1, corner posts 2 and a topplate 3. Key levers 4 are fulcrumed at their rear ends on a fulcrum bar5 and are each, provided -'ith. a finger key 6 and areturnjmli spring 7;Each key lever is connected to an upwardly extending link 8, connectedat its upperend to a sub-lever 9, pivoted at 10 to a hanger 11. The rearend of each sub-lever9 is connected to a link 12 which in turn'is con-"'nected at its rear end to a type bar' l3 pivoted at 14 to a hanger 15.The type bars are segmentally arranged to strike upwaidly and rearwardlyagainst the front face of a cylindrical platen 16 carried by a carriageoppositely grooved guide rails 18 which receive anti-friction balls orrollers 19, which rollers are. likewise received in op ositely groovedfixed guide rails 20, securecfto upwardly extending lugs 21 on the topplate of the machine. The carriage is thus mounted for movement fromside to side of the machine'over, the top plate, the carriage beingmoved from right to left by the usual spring drum- 22, shown in dottedlines because it is located onthis side of the plane on whiah thesection is taken in Fig. 1. Upwardly extending lugs 23 .project from therear of the carriage near the 'ends thereof. Rearwardly projecting arms24 are pivoted at 25 tothe lugs-23 and these arms are connected at theirrear ends to a feed rack 26, which meshes with a feed pinion 27, fixedto the forward end of the shaft 2-3, mounted to turn in a bearing 29,fixed t-o ,the top plate o'f the machine. The tear'endportion of'theshaft 28- extends beyond the bearing 29 and has a collar 30 securedthereto by a set screw' 31. Projections. 32 extend rearwardlyfrom saidcollar parallel with the axis 1 of the escapement- Wheel shaft 28.

These-projections 32 extend into correspondin'gslots 33'in' the hub ofan escapement rack or wheel 31.

. which the threaded sleeve may be turned, as

escapemenlt wheel ,doubl understood 'that the collar 30 is fixed to theregulate the timing of the let-off as will hereinafter more clearlyappear.

A single feed dog 46 is pivoted at 47 to a dog rocker 48. The dog 46 isreceived in a slot in thedog rocker and the tail 49 of the dog bearsagainst the body portion of the dog rocker to limit the movement of thedog in one direction. A coiled expansion spring 50 is received in arecess in the dog rocker and bears at its upper end against the feed dogto the right. of the pivot 47, as the parts are shown in Fig. 5. Thepressure of the spring 50 is thus exerted to normally main tain the feeddog 46 in the elevated position and in the path of the teeth on theescapement wheel which is in the plane-of the feed dog. The dog'rocker48 has a rock shaft 51 mounted at its ends on coned pivot screws 52,received in tapped openings in lugs 53, which latter project rearwardlyfrom a bracket plate the machine downwardly extending arm 55 isapertured to receive the rock shaft 51 of the dog rocker. The arm 55 isadapted to receive .a pivotal adjustment around the rock shaft 51 bymeans of an adjusting device which comprises an eccentric 56, thebearing spindle 57 of which is adapted to turn in a bearing portion 58on the dog rocker 4-8. The finger piece From an inspection of Fig. 6 itwill be seen that the shaft 28 has an exteriorly threaded hollow spindleor sleeve 28 loosely mounted thereon; the threads 35 and 36 on thesleeve extending in opposite directions to constitute right andleft-hand screw threads. The hub of the escapement wheel 34 isinteriorly threaded to cooperate with the screw threads 36 whereas acorresponding hub 37 on a second escapement wheel 38 is interiorlythreaded for coiiperation with the threads 35. The threaded sleeve 28 isextended rearwardly beyond the threads 35 to form alpearing portion 39on which a sleeve 40 is mounted. This sleeve is knurled on its peripheryto form a finger piece by will hereinafter more clearly appear. Thesleeve 40 is provided with an inwardly extending pin 41 which isreceived in a splined groove 42 in the extension 39 of the threadedsleeve. The splined connection between the finger piece 40 and thethreaded sleeve 28* is merely to facilitate an assembling or dismantlingof the parts. Thus a collar 43 is fixed to the rear end portion of theshaft 28 by a set screw 44. WVhen this collar is detached the fingerpiece 40 may be removed to enable the sleeve or hollow-spindle 28together with the escapement wheels 38 and 34 to be removed from theshaft 28. The wheels may then betaken off the sleeve 28"' by threadingthem ofi' said sleeve in opposite. directions, Screws 45 are received inand pass freely through openings in the 38, and are adapted to bereceived inf threaded openings in the escape ment wheel 34 when theparts are positioned as represe ted in Fig. 5, so as to fix theescapement wheels, or two members of the e escap'ement wheel, to rotatetogether. i

From the fo eigoing description it will be spindle 57 is provided with a59, in the nature of a knurled head, by which the spindle and theeccentric 56 may be turned. The eccentric isreceived in a rectangularopening 60 in the arm 55, the width of the opening corresponding to thediameter of the eccentric 56. By turning the finger piece 59 the dogrocker may be turned relatively to the arm 55 either to the right orleft, as the parts are shown in Fig. 6, thus affording a relativeadjustment between the dog rocker and the depending arm 55. The lowerend of the arm 55 is connected to a link 61 which has its forward endpivshaft 28, and that the escapement wheel 34 is fixed, through theconnection 32-33, to rotate witlrsaid collar, and the escapement wheel38 being connected to the escapement wheel'34, all of these parts willrotate together. The teeth of the escapement Wheels are spaced apart,and so disposed, that a movement of the double escapemeut wheel 34-38from a tooth of one of said wheels to the next on-coming tooth of theother wheel, affords a full letter space movement of the carriage. Itwill also be understood from the foregoing description that a turuing ofthe finger piece 40, when the screws 45 are loosened, will effect arelative adjustment between said escapement wheels toward and away fromeach other. After a relative adjustment of the wheels has been 45 shouldbe tightened tb arm 63, fixed to a rock shaft 64. This rock shaft ismounted to turn in suitable bearings in the base of the machine and isprovided with forwardly projecting crank arms 65 near the ends ofthe'roek shaft. To these arms is fixed a universal bar 66, which extendstransversely of the machine beneath the system of key levers 4. Crankarms 67, corresponding to the crank arms 65, project rearwardly from therock shaft and support a universal bar 68 which likewise extends beneaththe system of key levers 4/ The two universal bars 66 and 68 are thusconnected to the rock shaft 64. to move in unison but to move inopposite directions. Fr m certain aspects of the invention thercfore thetwo connected universal bars may be regarded as a double universal bar.From other aspects the universal bars 66 and 68 may effected the screwsbind the wheels together. The purpose of this relative adjustment of thewheels is to oted at 62 to an upwardly extending crank be regarded astwo universal s.

bars, each operated by its own independent mechanism, as willhereinafter more clearly appear. Screw stops 69 are received in tappedopenings in lugs 70 on the base of the ma chine and are adapted tocooperate with and limit the downward movement of the uniyersal bar 66,whereas corresponding screw stops 71 are adapted to cooperate with andlimit the downward movement of the universal bar (58. ,Each of the keylevers 4 nately actuated at successive down strokes of the key. In thepresent instance these actuating devices comprise pawls 7 2 and 7 3,pivoted at 74 to the associated key lever at opposite sides of the rockshaft 64; two of such pawls being carried by each of the key lev'ers' Aleaf spring 75 has central depending ears 76 by which the spring may ibe connected by a rivet 77 to a key lever.

The opposite free end portions of each leaf spring are adapted to bearon thetop flat .ends 78 of the pawls, and tend to maintain the pawlsfixed. relatively to the key lever, to which they are'connect'ed,-in thepositions shown in Fig. 1. Each of lle pawls 72 and 73 is provided withan engaging notch 79 and an engaging face 80 for purposes whichwillhereinafter more clearly appear. Each of the universal bars 66 and68 is preferably formedwith a sharp upper engaging edge 81 forengagement in the notches 79 of the pawls 73- and.-72 respectively, onthe differentkey levers, whereas the engaging face or projection 80 oneach of the pawls is adapted to co-act with the associated universalbar, under certain conditions, as indicated in Fig. 2 for example.

It will be understood that the dog rocker and the entire train ofconnections from the-feed dog to the universal bars is free from springpressure, or from a spring pressure which tends to move the parts fromthe positio'nsto' which they may be moved under control of the fingerkeys.

In other words, the parts are free to remain in the positions to whichthey are moved by the finger keys at each-operation thereof,'and in theactuation of the esc'apement -mechanism it is unnecessary to overcomethe power of returning springs, sueh asfi are ordinarily used to returnthedog rocker, universal bar, etc., to normal p0S1tlOI1;' the 'onlyreturning springs employed in the present instance being the returningsprings 7. for, the key levers themselves and the" light springs 75 forthe pawls 72 and 73. Moreover, it willbe understood that a fulllflter'space movement of the carriage is effected at each back or forthmovement of the dog'roeker, or at each movement ofthe feed dog from oneescapement wheel to the other transversely of the plane of theescapement wheels, and by a movement of the feed dog in but onedirection. 1

Referring to Fig. 1 it will be seen that a depression of any of the keylevers 4 is effective to carry the associated pawl 72 carried therebyinto engagement with the universal bar 68. A continued downward movementof the finger key is effective to depress the universal bar to theposition shown in Fig. 2, thereby rocking the rock shaft 64 and crankarm 63, efiecting a rearward longitudinal movement of the link 61 'toturn the dog rocker on its rockshaft,

thus moving the feed dog forwardly out-of engagement with the rearescap'e'ment wheel 38 and carrying it into the patlrof'the next oncomingtooth of the escapement wheel 34.

tive to elevate the universal bar 66 'to a position where any of thepawls 73 will cooperate therewith at the neXt down stroke of a key. Whena key resumes its normal position from that shown in Fig. 2, after thefirst depression, the parts will be disposed as indicated in Fig. 3; thekey having returned independently of the universal bars and the partscontrolled'thereby- The next down stroke of a key is eflective to carrythe pawl 73, carried by the associated .key lever, into engagement withthe 'universal bar 66, and a continued "downward movement of the keylever depresses said universal bar 66 to theposition shown in Fig. 4:;at the same time elevating the universal bar 68 into operative position.This last mentioned down stroke of a key is effective to move the dog,rockerto effect a rearward movement of a feed dog, back to tl eposition shown in Fig. 1, and toafiord a full letter space movement ofthe carriage. I It will be understood that'the universal bars and theconstantly maintained connections between said universal bars andthe'movable feed element or member, which in the present instance is a feeddog'46, are normally disconnected from'the key levers and'that adepression of a key lever-is effective to move these parts-in 'onedirection and then in the opposite direction at successive key strokes;that the only parts which need to be restored to normal position aftereach depression ofa key are the key levers themselves and the actuatingde- ['1 vices or pawls carried by them, so that these 'last mentionedparts may be quickly re stored to normal position, enhancing therapidity of operation; that the act of actuating the escapementmechanism to afford a letter space feed movement of the carriage iseffective to set the parts, or certain of the parts, for the nextoperation, thereby rendering the escapement rapid in operation; that thefirst part of the stroke of each finger key is effected independently ofthe cscapement mechanism, or the parts which constitute the train-ofconnections from the universal bar to the movable feed dog, thusrendering the touch on thekeyslight at I, the first part of the stroke;that thereare no such returning or restoringsprings to overcome duringthe depression ofa key as are ordinarily employed in escape nents,

which provides a light, easily operated escapement; that there is nobackward and forward movement of the dog rocker and the parts connectedtherewith at each complete operation of a key but only a movement of theparts in one dlIGCf/lOIL SO that there is no snapping of the parts backto normal position under spring pressure or the noise that would resulttherefrom; that a depression of any finger key is effective topositively move the parts in one direction to effect a letter feedmovement of the carriage and that wear on the parts is therefore reducedone-half; that the up-stroke of a key is ineffective to movetheuniversal bars, and the parts controlled thereby, which have beenactuated by the down stroke of the key, so that any trembling movementof the finger key at the last portion ofthe key depression isineffective to vibrate the dog rocker, which ordinarily would result inthe carriage skipping or feeding improperly; and th: therefore apositively acting, simple, efficient, light, rapid and reliableescapement mechanism is provided and one in which the wear on the partsis reduced onehalf and in which the noise due to actuating theescapement is greatly reduced, if not entirely eliminated.

In order to regulate the timingof the let-off of the carriage at eachactuation of a key, it is simply necessary to vary the overlap of thefeed dog 46 on the teeth of the escapement wheels, by effectingarelative adjustment between the escapement wheels toward and. away fromeach other in the manner hereinbefore described. The parts as shown inFig. l are represented as they appear when the eseapement wheels areadjusted farthest from each other to afford the quickest let-off of thecarriage. This adjustment of the parts enables the carriage to be letoff when the type bar reaches the position indicated in dotted lines inFig. l. The maximum adjustment of the escapement wheels toward eachother is represented in the diagrammatic View shown in Fig. 7. By thearrangement of the parts shown in Fig. 7 the let-off is not effecteduntil the type bar is close to the platen. It

the dog from the escapement wheel escapement wheel 38, and that this 1strue and of its received between the will be understood that byadjusting the escapement wheels axially in the manner described towardand away from each other, the extent of overlap of the feed dog on theteeth of both escapement wheels is the same so that the feed effected bya movement of the dog from, say, the escapement wheel 38 to theescapement wheel 34, is identically the same as that effected by amovement of 34 to the whatever the relative adjustment may be betweenthe escapement wheels. This is clearly indicated by the diagrammaticView shown in Fig. 7. In this view the escapement wheels are shown infull lines at the extreme adjustment in one direction and in dottedlines at the extreme adjustment in the opposite direction. It will beunderstood from an inspection of the feed dogfl-ti movement from the.full to the dotted line position shown in this figure, that the extentof overlap between said dog and the teeth of the escapement wheels isthe same for both wheels no matter what the adjustment of said wheelsmay be.

the dog rocker may be adjusted relatively to the arm 55 is to regulatethe position of the feed dog with reference to the escapement wheelsafter the screw stops 69 and 71 have been properly adjusted to regulatethe positions and throw of the universal bars and connections controlledthereby.

For the purpose of my present invention it is immaterial from certainaspects whether a single dog be en'i 'ilo'yed to cooperate with twoescapement racks or wheels, or whether a single escapement rack or wheelbe provided to cooperate with two feed dogs. In Figs. 8 and 9 I haveshown a modified form of construction in which a single escapcment wheel82 is provided, and in which the eeth are so spaced and the parts soarranged that a movementof the wheel corresponding to one-half thedistance'from one tooth to the next of the wheel, affords a full letterspace movement of the carriage, as will hereinafter appear. Thisescapcment wheel is or may be operatively ceniwcted to the escapementwheel shaft 28 by the usual pawl 83 and ratchet 84. to afford a movementof the carriage from left to right independently of the escapement.wheel. The dog rocker 489 is bifurcated at its upper end to provide twoarms 85. Two feed dogs 86 and 87 are arms 85; each dog being threaded onan adjusting member 88 which is in the nature of a spindle pivoted ontrunnions 89 in bearing openings in the arms 85. The adjusting memher 88is provided with right and lefthand screw threads 90 and 91 whicheooperate withthe dogs 87 and 86 respectively; said dogs beinginteriorly ded in the j e purpose of the adjusting means by; which bodyportions thereof for cooperation with the right and left-hand threads ofthe member 88. One of the trunnions 89 is extended beyond the associatedarm 85 and is provided with a screw driver nick 92, which affords aturning movement of the member 88 to effect a relative adjustmentbetween the feed dogs toward and away from each other transversely-ofthe plane of the escapement wheel. From an inspection of Fig. 8 it will.be observed that the upwardly extending .engaging projections of thefeed dogs 86 'move the dog rocker in the opposite di'rec tion, and thateach of these movements of the dog rocker is effective to move one ofthe dogs out of cooperation with the escapement wheel and to bring theother dog into the path of the next on-coming tooth of the wheel toafford a full letter space movement of the carriage. The effect ofadjusting the two feed dogs 86 and 87 toward and away from each other isthe same'exactly as effecting a relative adjustment of the escape mentwheels toward and away from each other in the previously describedconstruction.

One of the arms 85 hereinbefore referred to is preferably formed as aseparate plate 93 secured to the dog rocker by a screw 94. This is'toenable the parts to be readily assembled or'taken down. 1

\Vhat I claim as new and desire to secure by Letters Patent, is

1. In a typewriting machine, the combination of a power driven'carriage;cooperative escapement members one of which is movable back and forthtransversely of the other;'finger keys; and means intermediate saidfinger keys and said movable escape ment member for moving the lattereither back or forth in one direction at each complete operation of akey, said means comprising two universal bars, and actuating meanscooperative with said universal bars.

2. In a typewriting machine, the combination of a power driven carriage;cooperative escapement members one of which is movable back and forthtransversely of the 4 other; finger keys; and means intermediate saidfinger keys and said movable escapementinember for moving the lattereither p l back or forth in one direction at each complete operation ofa key, said means comescapement members one of which is'movable back.and forth transversely of the other; finger keys; and meansintermediate saidfinger keys and said movable escapement member formoving the latter either back or forth in one direction at each completeoperation of a key, said means comprising two universal bars, asinglecarrier for said bars, said carrier being pivoted intermediate thebars, and means cooperative alternately with said bars to actuate them.

4. In a typewriting machine, the combination of a power driven carriage;cooperative es'capement members one of which is movable back and forthtransversely of the other; finger keys; and means intermediate saidfinger keys and said movable'escapement member for moving the lattereither back or forth in one directionat each complete operation of akey, said 'means comprising two universal bars, and means by which saidfinger keys are rendered operative alternately on first one and then theother of said universal bars, the actuation of one bar by a finger keyrendering the other universal bar operative at the next key operation. Ii

5. In a typewriting machine, the combination of a power driven carriage;cooperative escapement members one of which is movable back and forthtransversely of the other; finger keys; and means intermediate saidfinger keys and said movable escapemcnt member for moving the lattereither back or forth in one direction at each complete operation of akey, said means comprising two universal bars, key controlled means foractuating said universal bars, and means by which the actuation of oneof said universal bars is effective to bring the other universal barinto cooperative relation with gaid key controlled actuating meansthere- 6. In a typewriting machine,the combinaf tion of a power drivencarriage; cooperative escapement members one of which is movable backand forth transversely of the other; finger keys; and means intermediatesaid finger keys and said movable escapement member for moving thelatter eitherback or forth in one direction at each com plete operationof a key, said means comprising two universal bars, and means by; whichone universal bar is elevated when the other is depressed.

7 In a typewriting machine, the combination of a power driven carriage;cotiperative escapement members one of which is movable back and forthtransversely of the plete operation of a key,

' first on one and .vices, one or more of said devices being controlledby each of said finger keys, and

' means which render said key actuated devices operative alternatelyfirst on one and then on the other of said universal bars at successiveoperations of said keys.

8. In a typewriting machine, the combination of a power driven carriage;cooperative escapement members one of which is movable back and forthtransversely of the other; finger keys; and means intermediate saidfinger keys and said movable escapement member for moving the lattereither back or forth in one direction at each comsaid means comprisingtwo universal bars, levers with which said finger keys are connected,pawls carried by said levers, and means by which said pawls are renderedalternately operative then on the other of said universal bars.

9. In a typewriting machine, the combination of a power driven carriage;cooperative escapement members one of which is movable back and forthtransversely of the other; finger keys; and means intermediate saidfinger keys and said movable escapementmember for moving the lattereither back or forth in one direction at each complete operation of akey, said means comprising two universal bars, key levers which carrysaid finger keys, pawls which are carried by said key levers, springswhich tend to maintain said pawls in fixed relation to the key leverswhich carry them, and means by which said pawls are rendered operativealternately first on one and then on the other of said universal bars.

10. In a typewriting machine, the combination of a power drivencarriage; coiiperative escapement members one of which is movable backand forth transversely of the finger keys; and means intermediate other;said finger. keys and said movable escape ment member for moving thelatter either back or forth in one direction at each complete operationof a key, said means com prising two universal bars, key levers whichcarry said finger keys, pawls which are carried by said key levers,springs which tend to maintain said pawls in a fixed relation to the keylevers which carry them, and means for moving one universal bar intocoilpera tive relation with a pawl on each key lever when the otheruniversal bar is actuated.

11. In a typewriting machine, the combination of a power drivencarriage; cob'pera tive escapement members one of which is movable backand forth transversely of the tuation of one other; finger keys; andmeans intermediate said finger keys and said movable escapement memberfor moving the latter either back or forth in one direction at eachcomplete operation of'a ke said means comprising two universal bars, keycontrolled actuating devices, and means for swinging one universal barinto the path of the actuating devices when the other universal bar isswung out of the path of the actuating devices.

12. In a typewriting machine, the combination of a power drivencarriage; cooperative escapement members one of which is movable backand forth transversely of the other; finger keys; and means intermediatesaid finger keys and said movable escapement member for moving thelatter either back or forth, said means comprising two universal bars,and means for alternately actuating first one and then the other of saiduniversal bars and by which each universal bar is moved only at a downstroke of a key.

13. In a typewriting machine, the combination of a power drivencarriage; cotiperative escapement members one of which is movable backand forth transversely of the other; finger keys; and-rneansintermediate said finger keys and said movable escapement member formoving the latter either backer forth, said means comprising twouniversal bars, a single carrier for said bars, said carrier beingpivoted intermediate said bars, and'means cooperative alternately withsaid universal bars at successive key opera tions.

14. In a typewriting' machine, the combination of a power drivencarriage; cooperative escapementmembers oneof which is movable back andforth transversely of the tps" other; finger keys; and meansintermediate said finger keys ment member for moving the latter eitherback or forth, said means comprising two universal bars, and means bywhich the acuniversal bar by a key operaand said movable escapetion iseffective to render the other universal bar operative at the next keyoperation.

15. In a typewriting machine, the combination of a power drivencarriage; cooperative escapement members one of which is movable backand forth transversely of the other; finger keys; and means'intermediatesaid finger keys and said movable escapement member for moving thelatter either back or forth, said means comprising two universal bars,and means by which one universal bar is elevated when the other isdepressed.

16. In a typewritingmachine,the combination of a power driven carriage;cooperative escapement members one of which is movable backand forthtransversely of the other; finger keys; and means intermediate saidfinger keys and-said movable escapealternately first on one and then onthe other of said universal bars at successiv operations o f said keys.I

17. In a typewriting machine, the combination of a power drivencarriage; cooperative escapement members one of which is movable backand forth transversely of the -other;-finger keys; and meansintermediate said finger keys and said movable escapement member formoving the latter either back or forth in one direction at each completeoperation of a key, said means comprising universal bar mechanism, and.means controlled by said finger keys to movesa-id universal barmechanism alternately first in one direction andthen in the oppositedirection at successive key operations.

18. In a typewriting machine, the combination of finger keys; a powerdrivencarriage; escapement mechanism therefor, a universal bar; andmeans by which said universal bar is moved in but one direction at eachcomplete operation of a finger key.

19. In a typewriting machine, the combi- I nation of finger keys; apower driven carriage; escapement mechanism therefor, a universal barfree from spring pressure, and key controlled means for movingsaiduniversal bar in opposite directions at successive key operations, eachcomplete key operation moving the universal bar in but one direction. v

20. In a typewriting machine, the combination of finger keys; a powerdriven carriage; cooperative escapement devices, one of which is movabletransversely of the other under control of said finger keys; andintermediate actuating connections between said finger keys and saidmovable escapement member, said connections including a universal bar,constantly maintained connections between said universal bar and saidmovable escapement member, and means by.

which the finger keys are rendered effective to move said universal baralternately first in one direction and then in the opposite direction atsuccessive key operations.

21. In a t/ypewriting machine, the combination of finger keys; a powerdriven carriage; cooperative escapement devices one of which is movabletransversely of the other under control of said finger keys; andintermediate actuating connections between said finger keys and saidmovable escapement member, said connections including a universal barfree from spring pressure, constantly maintained connections betweensaid universal bar and said movable escapement member, and means bywhich the finger keys are rendered effective at" the down stroke only tomove said universal bar alternately first in one direction and then inthe opposite direction at successive key operations.

' J 22. In a typewriting machine, the combination of finger keys; apower driven car rlage; cooperative escapement devices one of whlch ismovable transversely of the other under control of said finger keys; and

intermediate actuating connections between said finger keys and saidmovable escapement member, said connections including a rocker, auniversal bar, a constantly maintained connection bet-ween saiduniversal bar and rocker, and means operative only at the down strokesof the keys for moving said universal bar first in one direction andthen in the opposite direction at successive key operations, each keyoperationmoving the universal bar in but one direction.

23. In a typewriting machine, the combination of a power drivencarriage; escapement mechanism; keylevers; and means controlled by thekey levers for controlling said escapement mechanism, said meanscomprising two pawls carried by each of saidkey levers, .two universalbars, and means by which the ,two pawls on each key lever are renderedalternately operative on the. respective universal bars with which theycooperate. 1

24:. In a typewriting machine, the combination of a power drivencarriage; escapement mechanism; key levers; and means controlled by thekey levers for controlling said escapement mechanism, said meanscomprising two pawls carried byeach of said key levers, two universalbars, a rocker controlled thereby, and means by which the two pawls oneach key lever are rendered alternately operative on the respectiveuniversal 'bars with which they cooperate, whereby .the rocker isalternately rocked first in one direction and then in the oppositedirection at successive key depressions.

25. In a. typewriting machine, the combination ofapower driven carriage;escapement mechanism; key levers; and means controlled by the key leversfor controlling said escapement mechanism, said means comprising twospring pressed pawls carried by each of said key levers, two, universalbars connected to move in unison but in opposite directions, a rockercontrolled thereby and free from spring pressure, and means by which thetwo pawls on each key lever are rendered alternately operative on therespective universal bars'with which they cooperate.

26. In a. typewriting machine, the combination of a carriage; escapementmechanism therefor comprising an escapement wheel and a feed dog, asingle movement of the feed dog in one direction ail'ording a completeletter space movement of the carriage; finger keys; means intermediatesaid finger keys and dogs for effecting a movement of said feed dogalternately in one direction and then in the other at successiveoperations of the keys, each complete operation of a key effecting amovement of the dog in one direction, said means comprising twouniversal bars which are operated alternately at successive keyoperations.

27. In a. typewriting machine, the combination of a carriage; escapementmechanism therefor comprising a feed rack and a dog, one of said feedrack and dog members being movable relatively to the other; finger keys;means intermediate said keys and said movable member for effecting amovement. of said movable member in one direction only at each completeactuation of a key; successive operations of the keys effecting amovement of said movable member first in one direction and then in theopposite direction, said means comprising a universal bar, andmeans bywhich said universal bar is moved in but one direction at each completeactuation of a key 28. In a typewriting machine, the combination of acarriage; escapement mechanism therefor comprising two cotiperativeescapement members, and a rocker which carries one of said. escapementmembers: finger keys; mcansintermediate said finger keys and rocker formoving the rocker al ternat'ely first in one direction and then in theother at successive operations of said finger keys; a complete operationof each finger key effecting only a single movement of the rocker in onedirection, said means comprising a universal bar which is moved only atthe down strokes of the keys.

29. In a typewriting machine, the combination of a power drivencarriage; escapement mechanism therefor comprising two cooperativeescapcment members one movable back and forth relatively to the otherand free to remain in either of the two back and forth positions towhich it may be moved; finger keys; means controlled by said finger keysfor moving said movable escapcmcnt member alternately first to one ofsaid positions and then to the other, said means comprising a universalbar free to remain in the position to which it may be moved at each keydepression.

30. In a typewriting machine, the combination of a power drivencarriage; es-

capement mechanism therefor; finger keys;

means controlled by said finger keys for controlling a member of saidescapement mechanism, said controlling means comprising two sets of keyoperated actuating devices that move in the same direction at the downstrokes of the keys, two universal bars, and means by which theuniversal bars are brought alternately into cotiperative relation withthe associated set of actuating devices.

y 31. In a typewriting machine, the combina tion of finger keys; a powerdriven carriage; rooperative escapcment devices, one of .vhiclrismovable transversely of the other under control of the keys; and keycontrolled means for controlling said movable eseapement.members, saidmeans comprising two actuating devices movable in the same direction ateach operation of a key, and means cooperative alternately with firstone and then the other of said actuating devices to move the saidmovable escapement member.

32. In a typewriting machine, the combination of a power drivencarriage; two escapement wheels; a single feed dog cooperativetherewith; a dog rocker which is free to be moved back and forth and toremain in either of the back and forth positions to which. it may bemoved; printing keys; and means intermediate said print-- ing keys and.dog rocker for moving the lat ter in but one of said back and forthdirections at each complete operation of a key, said means comprising auniversal bar, and means by which the universal bar is moved in but onedirection at each complete operation of a key.

In a typewriting machine, the combination of a power driven carriage;two cscapement wheels; a single feed (log cooperativetherewith; a dogrocker which is free to be moved back and forth and to remain ineithenof the hack and forth post-- tions to which it may be moved;printing keys; and means intermediate said printing keys and dog rockerfor moving the latter in but one of said back and forth directions ateach complete operation of a key, said means comprising two universalbars, and means by which one universal bar is moved into operativeposition by the movement of the other universal bar out of operativeposition.

34. In a typewriting machine, the combination of a power drivencarriage; two

.escapement wheels; a single feed dog comeans comprising two universalbars and means' whereby successive key strokes are operative toalternately move first one and then the other of said universal bars.

35. In a typewriting machine, the combination of a power drivencarriage; two escapement "wheels which are fixed to turn a ate an whichafford alun letter Lora n ta space movement of the carriage at eachmovement of'the wheels from one tooth on one wheel to the next tooth onthe. other wheel; a single dog which coiiperates with said escapementwheels; a dog. rocker which carries said dog and by which it is movedback-and forth transversely through said wheels, said rocker being freeto removing it"to but one of said back and forth I positions 'ateach-complete operation of a printing key, said movin'gmeans includingconnected to turn together, a dog rocker; a I single dog'carri'ed bysaid dog rocker and. affording a full letter space movement of thecarriage at each back or forth movement of two universal bars,'--andymeans by which said universal bars are alternately operated upon atsuccessive key-' operations.

36. In a typewriting machine, the combination of a power drivencarriage; two escapement wheels therefor, said wheels being the dog,rocker; finger keys; means controlled by..-said finger keys formovingsaid rlog rocker, said means including universal bar mechanism,and means by which the umversal bar mechanism 15 moved in but 'onedirection at each complete operation of a key and a correspondingmovement is transmitted to the dog rocker.

' 37 In a typewriting machine, the combi-' nation of a carriage; feedmechanism therefor including two cooperative members, one of whichcomprises two elements that cooperate alternately with the other memberto afford a feed of the carriage; and means for effecting an adjustmentof both said elements toward and away from each other.

38. In a typewriting machine, the combination of a carriage; feedmechanism therefor including two cooperative members, one of whichcomprises two elements that cooperate alternately with the other memberto afford a feed of the carriage; finger keys; means under control ofthe finger keys for moving one of said escapement members transverselyof the other; and means for effecting an adjustment of both saidelements toward and away from each other.

39. In a typewriting machine, the combination of a carriage; carriagefeed mechanism including two feed members carried by the same part ofthe machine and arranged side by side; and means for effecting anadjustment of said members toward or away from each other insubstantially parallcl planes.

- 40. In a typcwriting machine. the combinat on of a carriage; carriagefeed mecha- 'nisni including two parallel fern/racks; and

-mc ans for efl'ecting a relativeadj ustment of said racks toward oraway from each other in parallel planes.-

' Al in a typewnting machine. the combi-. nation of a carriage; carriagefeed mechaj 111S1Il including two parallel escapement wheels fixed toturn together ;'.and means for .eltecting an adjustment of saidcscapement wheels toward and away from each other in parallel planes.

1 ea. In a typewrlting machine, the combi nation of a power drivencarriage; escapement mechanism therefor including two parallele'scapement wheels fixed to rotate together; and a single dogcooperative with said escapement wheels to ailord a full letter spacemovement of the carriage at each movement of the dog from engagementwith a tooth of one escapement wheel into engagement with the next teethof the other escapement wheel; and means for efi'ecting an adjustment ofsaid escapement wheels to ward and away from each other.

43. In a typewriting machine, the comhi nation of a power drivencarriage; es-' capement mechanism therefor comprising two esca ementwheels; 9. single dog coiiperative t ierowith; and means for effectingan ad ustment of said escapement wheels toward and away from each'other,said ad justing means comprising a right and lefthand screw. 44. In atypewriting machine, the combination of a carriage; feed mechanismtherefor comprising two feed devices arranged side by side; and anadjustable member on which said devices are mounted and by which theymay be simultaneously adjusted toward and away from each other todiilerent set positions.

45. In a typewriting machine, the combination of a carriage; eedmechanism therefor comprising two feed devices arranged side by side;and an adjustable spindle having right and left-hand screw threads withwhich said devices cooperate and by which they may be simultaneouslyadjusted toward and away from each other to difierent set positions.

4:6. In a typewriting machine, the combination of a carriage; and feedmechanism therefor including a pivoted rocker having an arm adjustablyfixed thereto for connection with the means for actuating said rocker,and a cam for effecting an adjustment of said rocker relatively to the.arm.

47. In a typewriting machine, the combination of a carriage; andescapement mech anism therefor including a rocker, a shaft for saidrocker, an actuating arm loose upon said shaft, and adjustable means forconnecting the actuating arm to the rocker. $8. In a typewrit ngmachine, the combination of a key 18. or; two pawls carriedby said keylever; spring means for maintaining the said pawls normally fixed withrefment devices, one of which cooperates with the other two to controlthe movement of j the carriage at the operation of the finger keys; andmeans for effecting an adjustment of said two escapement devices towardand away from each other to regulate the extent of overlappingengagement between said toothed escapement member.

50. In a typewriting machine, the combination of finger keys; a powerdriven carriage; escapement mechanism therefor comprising threecooperating toothed escapement devices, one of which cooperates with theother two to control the movement of the carriage at the operation ofthe finger keys; and means for effecting a simultaneous adjustment ofsaid two escapement devices toward and away from each other to equalextents to regulate the extent of overlapping engagement between saidtoothed escapement members and to assure the same extent of overlapbetweeir the single toothed escapement device and each of the other twodevices.

51. In a typewr'iting machine, the combination of finger-keys; a powerdriven carriage; escapement mechanism therefor comprising a tootheddouble escapement device, and a cooperative toothed single escapementdevice; and means for effecting a corresponding adjustment of bothmembers of said double escapement device toward and away from each otherand for retaining the said members in; the relative positions to whichthey are adjusted, whereby the overlapping engagement between bothmembers of the double escapement devices an'd said, single device may bevaried and th e varigw tion in overlap efi ccted by each adjustment ofsaid adjustable means will be the same on both members of said doubleescapement device. 52. In a typewriting machine, thecombr nation of,finger keys; a power driven carriage; escapement mechanism thereforcomprising cooperating toothed escapement devices two of which areengaged by a third device, and adjustable means operable at will foreffecting a variation in the overlapping engagement between said membersand by which. any variation in the overlap between the said third deviceand one of -the said two devices produces :1. corresponding overlapbetween the said third device and the other of said two devices.

53. In a typewriting machine, the combination of finger keys; a powerdriven carriage; escape'ment mechanism therefor con1- prisingcooperating toothed escapcment devices two of which are alternatelyengaged by a third device at successive key depressions to afford a fullletter space movement of the carriage at each complete operation of akey; and adjustable means operable at will. for eifecting a variation inthe overlapping engagement between said members and by which anyvariation in the overlap between the said third device and one of thesaid two devices produces a corresponding overlap between the said thirddevice and the other of said two devices.

Signed at the borough of Manhattan, city of New York, in the county ofNew York, and State of New York, this 12th day of November, A. I). 1910.1

JOHN \VALDIIEIM.

\Vit-nesses CHARLES E. SMrri-I, E. M. IVELLs.

